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ssh security
by Cisco-Education 20 Jun '09

20 Jun '09

Dear All, I have the following setup running perfectly OK for a long time CentOS release 5 (Final) sendmail-8.13.8-2.el5 MailScanner 4.76.25 bind-9.3.4-6.0.3.P1.el5_2 now i jus setup a centos box running BackupPC for backing up my my above mail server using ssh as per the instructions in backup pc site i had to enable sshd so i did it and everthing works perfect and backup works great as per my requirement but i notice that when i do a tail -f /var/log/secure i see the followin very often --------------------------- Jun 19 16:26:06 kmdns1 sshd[11073]: Invalid user jeka from 87.118.122.78 Jun 19 16:26:06 kmdns1 sshd[11074]: input_userauth_request: invalid user jeka Jun 19 16:26:06 kmdns1 sshd[11074]: Received disconnect from 87.118.122.78: 11: Bye Bye Jun 19 16:26:07 kmdns1 sshd[11075]: Invalid user stat from 87.118.122.78 Jun 19 16:26:07 kmdns1 sshd[11076]: input_userauth_request: invalid user stat Jun 19 16:26:08 kmdns1 sshd[11076]: Received disconnect from 87.118.122.78: 11: Bye Bye Jun 19 16:26:09 kmdns1 sshd[11077]: Invalid user nikonew from 87.118.122.78 Jun 19 16:26:09 kmdns1 sshd[11078]: input_userauth_request: invalid user nikonew Jun 19 16:26:09 kmdns1 sshd[11078]: Received disconnect from 87.118.122.78: 11: Bye Bye Jun 19 16:26:10 kmdns1 sshd[11079]: Invalid user koval from 87.118.122.78 Jun 19 16:26:10 kmdns1 sshd[11080]: input_userauth_request: invalid user koval Jun 19 16:26:11 kmdns1 sshd[11080]: Received disconnect from 87.118.122.78: 11: Bye Bye Jun 19 16:26:12 kmdns1 sshd[11081]: Invalid user smk from 87.118.122.78 Jun 19 16:26:12 kmdns1 sshd[11082]: input_userauth_request: invalid user smk Jun 19 16:26:12 kmdns1 sshd[11082]: Received disconnect from 87.118.122.78: 11: Bye Bye Jun 19 16:26:14 kmdns1 sshd[11083]: Invalid user ksusha from 87.118.122.78 Jun 19 16:26:14 kmdns1 sshd[11084]: input_userauth_request: invalid user ksusha Jun 19 16:26:14 kmdns1 sshd[11084]: Received disconnect from 87.118.122.78: 11: Bye Bye Jun 19 16:26:15 kmdns1 sshd[11085]: Invalid user jane from 87.118.122.78 Jun 19 16:26:15 kmdns1 sshd[11086]: input_userauth_request: invalid user jane Jun 19 16:26:15 kmdns1 sshd[11086]: Received disconnect from 87.118.122.78: 11: Bye Bye Jun 19 16:26:17 kmdns1 sshd[11087]: Invalid user celeron from 87.118.122.78 Jun 19 16:26:17 kmdns1 sshd[11088]: input_userauth_request: invalid user celeron Jun 19 16:26:17 kmdns1 sshd[11088]: Received disconnect from 87.118.122.78: 11: Bye Bye -------------------- Now both the Mail server and the backup pc server behind firewall and ssh protocol is denied to the hosts in the DMZ zone jus wondering how a outside user could try to ssh to my mail server. if i stop the sshd daemon i dont see any messages in my secure log file apprecite your addvice and help regards Fabian -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

10 11

Postfix question: How to reject email with a certain subject header
by Gilbert Sebenste 20 Jun '09

20 Jun '09

Hello everyone, Occasionally I get emails which have a subject header of "Rejected posting to Blah", from a listserv I am on. Without going into a 10 page diatribe of why, I'd like to reject these automatically, sending them to /dev/null. I used to run Sendmail and that was pretty easy to do. How can I do this under Postfix under CentOS 5.3? Any help is appreciated. Thanks! Gilbert ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** *******************************************************************************

5 7

usb issue on my motherboard
by Jerry Geis 20 Jun '09

20 Jun '09

I have found this http://bugzilla.kernel.org/show_bug.cgi?id=10913 I am running that motherboard with 2.6.18-128.1.10 x86_64 and I have the USB issues. I dont really want to use a later kernel for a couple reasons one being the ATI Catalyst drivers dont work on later kernels (I tried on another machine). Is there a way to take 2.6.30 (just since its the current version)usb/host directory and compile it as a module for the 2.6.18-128.1.10 kernel and just replace the ehci_hcd driver? I extraced the 2.6.30 kernel, and was hoping to just cd drivers/usb/host and make. It says no tarkets found. How can I do that? THanks, I just want to compile the module. Jerry

1 0

More then one version of KDE
by Robert Spangler 20 Jun '09

20 Jun '09

Hello, Is it possible to have more then one version of KDE installed and switch between them? I'd like to try out the new KDE but don't want to lose what I have now. Thnx -- Regards Robert Linux User #296285 http://counter.li.org

3 2

CentOS-announce Digest, Vol 52, Issue 11
by centos-announce-request＠centos.org 20 Jun '09

20 Jun '09

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CEEA-2009:1105 CentOS 5 x86_64 tzdata Update (Karanbir Singh) 2. CEEA-2009:1105 CentOS 5 i386 tzdata Update (Karanbir Singh) 3. CEBA-2009:1088 CentOS 5 i386 mkinitrd Update (Karanbir Singh) 4. CEBA-2009:1088 CentOS 5 x86_64 mkinitrd Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Sat, 20 Jun 2009 07:52:46 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEEA-2009:1105 CentOS 5 x86_64 tzdata Update To: centos-announce(a)centos.org Message-ID: <20090620075246.GA20644(a)tantra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Enhancement Advisory 2009:1105 Upstream details at : https://rhn.redhat.com/errata/RHEA-2009-1105.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: 9e98373b9a42c62c1659ebc236af7551 tzdata-2009i-2.el5.noarch.rpm Source: 4a72766fdc26fba500e12dc3cb89fc34 tzdata-2009i-2.el5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Sat, 20 Jun 2009 07:52:46 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEEA-2009:1105 CentOS 5 i386 tzdata Update To: centos-announce(a)centos.org Message-ID: <20090620075246.GA20629(a)tantra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Enhancement Advisory 2009:1105 Upstream details at : https://rhn.redhat.com/errata/RHEA-2009-1105.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 999bfac66f0f6dde579f51ec104a3965 tzdata-2009i-2.el5.noarch.rpm Source: 4a72766fdc26fba500e12dc3cb89fc34 tzdata-2009i-2.el5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 3 Date: Sat, 20 Jun 2009 07:54:03 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2009:1088 CentOS 5 i386 mkinitrd Update To: centos-announce(a)centos.org Message-ID: <20090620075403.GA20734(a)tantra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2009:1088 Upstream details at : https://rhn.redhat.com/errata/RHBA-2009-1088.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 92347deef4b462677adecd49f7ea0447 libbdevid-python-5.1.19.6-44.1.i386.rpm 9d25c1ba0d7dff59adfad6d24ef8ac6c mkinitrd-5.1.19.6-44.1.i386.rpm 0268fe5b34886e730ddeda380d10aecd mkinitrd-devel-5.1.19.6-44.1.i386.rpm 1a5a390b5931112e080961694e02a7c3 nash-5.1.19.6-44.1.i386.rpm Source: 3290177a8290d3a6a47afa601b2a7404 mkinitrd-5.1.19.6-44.1.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 4 Date: Sat, 20 Jun 2009 07:54:03 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2009:1088 CentOS 5 x86_64 mkinitrd Update To: centos-announce(a)centos.org Message-ID: <20090620075403.GA20749(a)tantra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2009:1088 Upstream details at : https://rhn.redhat.com/errata/RHBA-2009-1088.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: ad97a9b68f62b35fd7e6f77ef05650e9 libbdevid-python-5.1.19.6-44.1.x86_64.rpm f346c56dac3b271704e042db9c6d8566 mkinitrd-5.1.19.6-44.1.i386.rpm 033858b84b3e3e04d84b0fd9c93c3e10 mkinitrd-5.1.19.6-44.1.x86_64.rpm d1eefb5825645e46e551a3a757dd8669 mkinitrd-devel-5.1.19.6-44.1.i386.rpm 6e303586fe2f13cead676c68e5ab8212 mkinitrd-devel-5.1.19.6-44.1.x86_64.rpm a27373ce11f61e3e9af69a11cfd43b03 nash-5.1.19.6-44.1.x86_64.rpm Source: 3290177a8290d3a6a47afa601b2a7404 mkinitrd-5.1.19.6-44.1.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 52, Issue 11 ***********************************************

1 0

Time to sync (NOT a complaint)
by MHR 20 Jun '09

20 Jun '09

Is anyone else seeing this situation? I subscribe to the announce digest, and for the last four or five announcements that contained updates to CentOS 5, I've been unable to get a successful run of yum update for as much as 24 hours after the announcement. The last time around, I tried at about 5 hours after the posting, and yum couldn't see anything. I ran yum clean all, and yum update still couldn't see anything. In general, if I wait a day, the updates load just fine, but that just feels wrong. I do have the fastestmirror plugin installed (and priorities). Thanks. mhr

4 5

One of my servers crashed, need help
by Gilbert Sebenste 20 Jun '09

20 Jun '09

Hello all, I just installed a new beta kernel from Dzickus over at redhat. Rebooting causes this, no matter what kernel I boot from: EXT3-fs error: device dm-0: ext3_check_descriptors: Block bitmap for group 5008 not in group (block 167772160)! EXT3-fs: group dexcriptors corrupted! Mount: error mounting /dev/root on /sysroot as ext3: Invalid argument Setuproot: /moving /dev failed: no such file or directory And a bunch of other mounting errors. OK, so, I have a Centos 5.2 install disk, but what can I do to get everything back? Any help greatly appreciated. Thanks! Gilbert ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** *******************************************************************************

6 6

Which external WiFi device for laptop running CentOS 5.3?
by David McGuffey 20 Jun '09

20 Jun '09

Have decided to give up on the embedded Broadcom 4312 wireless device in my son's Dell laptop. I get WEP open authentication to work, but nothing else. I was about to dump the bcm43xx kernel module and the bcm43xx-microcode5.fw firmware and work with the newer b43 module and associated firmware. However, he claims that at school, he has always had intermittent problems with wireless under Vista and wants an external device (USB or PCMCIA). So...if you had a clean slate, which make & model would you buy for mindlessly easy installation and use under CentOS 5.3? Dave

8 8

Odd module mentioned during update of kernel-PAE
by Stephen Harris 19 Jun '09

19 Jun '09

During my update from 5.2 to 5.3 I saw these lines during the update of kernel-PAE Installing : kernel-PAE [153/477] Warning: Module vboxnetflt.ko from kernel 2.6.27.12-170.2.5.fc10.i686 has no modversions, so it cannot be reused for kernel 2.6.18-128.1.14.el5PAE Warning: Module vboxdrv.ko from kernel 2.6.27.12-170.2.5.fc10.i686 has no modversions, so it cannot be reused for kernel 2.6.18-128.1.14.el5PAE Now vbox is not installed on this machine. However, it _is_ installed on a machine that this one acts as an NFS server for (or will do, if I ever get round to finishing the build). And, yes, the kernel version mentioned is for FC10... % locate vboxnetflt.ko /datadisk/exports/pugwash_fc10_root/lib/modules/2.6.26.5-45.fc9.i686/misc/vboxnetflt.ko /datadisk/exports/pugwash_fc10_root/lib/modules/2.6.27.12-170.2.5.fc10.i686/extra/vboxnetflt.ko /datadisk/exports/pugwash_fc10_root/lib/modules/2.6.27.5-41.fc9.i686/misc/vboxnetflt.ko /datadisk/exports/pugwash_fc10_root/lib/modules/2.6.27.7-53.fc9.i686/misc/vboxnetflt.ko /datadisk/exports/pugwash_fc10_root/lib/modules/2.6.27.9-159.fc10.i686/extra/vboxnetflt.ko /datadisk/exports/pugwash_fc10_root/var/lib/dkms/vboxnetflt/2.1.0/2.6.27.12-170.2.5.fc10.i686/i686/module/vboxnetflt.ko /datadisk/exports/pugwash_fc10_root/var/lib/dkms/vboxnetflt/2.1.0/2.6.27.9-159.fc10.i686/i686/module/vboxnetflt.ko /datadisk/exports/pugwash_fc10_root/var/lib/dkms/vboxnetflt/original_module/2.6.27.9-159.fc10.i686/i686/vboxnetflt.ko Why did the kernel-PAE update even look here? *confused* -- rgds Stephen

1 0

yum update bug with disk requirement calculation?
by Stephen Harris 19 Jun '09

19 Jun '09

I just updated my machine from CentOS 5.2 to 5.3 and noticed an oddity. The update required around 280Mb of disk space. I had over 500Mb of free space on root. And... the update failed with "need more space" errors. Now I can understand this; normally it would fetch the files from a http server, so the worst-case requirements are double (or more) than the download size reported by yum. EXCEPT these files were being served from an NFS server, and so were never copied local to the machine. Eventually I manually installed a few smaller packages and managed to get the space test passed. During the transaction I monitored free disk space in another window, and it never went below 300Mb free. Bizarre. -- rgds Stephen

1 0

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